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There are few signs in this crazy business that you have become an indelible and beloved member of the pop culture lexicon than getting a cameo appearance on an episode of Sesame Street. Case in point: Gallagher, O.J. Simpson and Kanye West have yet to appear on an episode of Sesame Street.

Well, would you want West teaching your kids the difference between "near" and "far," things that are yellow and why George Bush hates black people?

Some upcoming episodes of the long running PBS kids' show will include appearances by Christina Applegate on Jan. 25, Hugh Jackman on Jan. 27, Debi Mazar and Sarah Jessica Parker on Feb. 16 and Paul Rudd and Eva Longoria-Parker on Feb. 18.

WARNING: The following post contains images of a shocking nature and despite its source material, is not appropriate for anyone under the age of 18. And before you get all excited, no, it does not contain naked boobies.

We all remember lovable ol' Fred Rogers, aka TV's Mister Rogers, as a warm, cuddly and caring neighbor who never wore a frown and always had a smile for someone smaller than him.

But what if all those cheerful hellos, colorful sweater jackets and speeches about being special on Mr. Rogers' Neighborhood were just a mask hiding something very dark and sinister? Specifically, a clown mask?